Table 3. Summary of CD3-associated image features and performance of the CD3 prediction model (based on individual features and also of the feature combination) in the testing cohort.

Modality	Feature type	Feature	AUC	95% confidence interval
T1 Post	Histogram	Kurtosis	0.736	0.517-0.885
T1 Post	NGTDM	Contrast	0.759	0.557-0.891
T1 Post	GLSZM	Small Zone Size Emphasis	0.72	0.521-0.870
T1 Post	GLSZM	Low gray-level zone emphasis	0.673	0.468-0.860
T1 Post	GLSZM	High gray-level zone emphasis	0.745	0.568-0.894
T1 Post	GLSZM	Small zone high gray emphasis	0.798	0.619-0.911
All combined			0.847	0.66 -0.94

Abbreviations: NGTDM, Neighborhood Gray Tone Difference Matrix; GLSZM, Gray Level Size Zone Matrix